Baby stroller with portable cradle

Abstract

A baby stroller includes a frame and a portable cradle is removably connected to the frame. The portable cradle includes two pivotal devices which are removably connected to two support devices on the frame. The pivotable device each includes a first part and a second part which is removably connected to a third part of the support device. A sleeve is movably mounted to the first part and connected to a pin which is inserted into a notch in the second part and one of positioning holes in a third part of the support device such that the portable cradle can be easily adjusted the inclination. The second part is removably connected to the third part of the support device. A front wheel assembly is connected to a front end of the frame of the stroller and the front wheel part is removably connected to the base of the front wheel assembly so that the front wheel part can be easily replaced.

1. A baby stroller comprising:
 a frame ( 1 ); 
 a portable cradle ( 2 ) removably connected to the frame ( 1 ) and including a cradle frame ( 21 ), two pivotal devices (A) connected to the cradle frame ( 21 ) and each including a first part ( 3 ) and a second part ( 4 ), a plurality of first insertions ( 31 ) extending from each of the first parts ( 3 ) and the cradle frame ( 21 ) connected to the first insertions ( 31 ), each first part ( 3 ) having a first insertion hole ( 32 ) defined in a tubular portion extending therefrom and a U-shaped handle being connected to the two first insertion holes ( 32 ), an outer groove ( 33 ) and an inner groove ( 34 ) defined in a side of each of the first parts ( 3 ), one of the first insertions ( 31 ) having a space ( 311 ) defined therein and a through hole ( 312 ) defined through the first insertion ( 31 ) and communicating with the space ( 311 ), a passage ( 313 ) defined between the space ( 311 ) and the outer groove ( 33 ) and a notch ( 314 ) defined between the outer and inner grooves ( 33 ,  34 ), a spring ( 35 ) and a pin ( 36 ) located in the space ( 311 ), a sleeve ( 37 ) movably mounted to the first insertion ( 31 ) with the space ( 311 ) and a rivet ( 38 ) extending through the sleeve ( 37 ), the pin ( 36 ) and the through hole ( 312 ) so that the sleeve ( 37 ) is moved with the pin ( 36 ), the second part ( 4 ) having a second insertion ( 41 ) extending therefrom and the second insertion ( 41 ) connected to the frame ( 1 ) of the stroller, the second part ( 4 ) having an annular flange ( 42 ) which is engaged with the outer groove ( 33 ) in the first part ( 3 ) and a plurality of positioning holes ( 421 ) defined through the annular flange ( 42 ) so that the pin ( 36 ) is inserted one of the positioning holes ( 421 ), and 
 a front wheel assembly (C) connected to a front end of the frame ( 1 ) of the stroller. 
 
   
   
     2. The stroller as claimed in  claim 1 , wherein a stop ( 341 ) is located in the inner groove ( 34 ) of the first part ( 3 ) and a protrusion ( 43 ) extends from the second part ( 4 ), the protrusion ( 43 ) is movably received in the inner groove ( 34 ) and stopped by the stop ( 341 ) when rotating the second part ( 4 ) relative to the first part ( 3 ). 
   
   
     3. The stroller as claimed in  claim 1 , wherein a stub ( 371 ) extends from the sleeve ( 37 ). 
   
   
     4. The stroller as claimed in  claim 1 , wherein the frame ( 1 ) of the stroller includes two support devices (B) to which the pivotal devices (A) are connected, each support device (B) includes a third part ( 5 ) and a fourth part ( 6 ), each third part ( 5 ) includes a connection tube ( 52 ) extending therefrom which is connected to the frame ( 1 ) of the stroller by a rivet ( 521 ), an insertion hole ( 522 ) is defined in the connection tube ( 52 ) and a communication hole ( 523 ) is defined through a wall of the connection tube ( 52 ) and communicates with the insertion hole ( 522 ), a collar ( 53 ) is mounted to the connection tube ( 52 ) and includes a plug ( 531 ) extending from a first inner end thereof and a spring ( 532 ) is connected to the other inner end of the collar ( 53 ), the plug ( 531 ) extends through the communication hole ( 523 ) and is inserted into the insertion hole ( 522 ), the spring ( 532 ) is biased between an outer surface of the connection tube ( 52 ) and the collar ( 53 ), two side notches ( 411 ) are defined in two sides of the second insertion ( 41 ), a space ( 412 ) is defined in an underside of the second insertion ( 41 ) and a plurality of elongate slots ( 413 ) are defined in an inside of the space ( 412 ), a spring ( 45 ) and a movable member ( 46 ) are received in the space ( 412 ), the movable member ( 46 ) includes a plurality of hooks ( 461 ) which are hooked to the elongate slots ( 413 ), the spring ( 45 ) biases the movable member ( 46 ) downward, the second insertion ( 41 ) of the second part ( 4 ) is inserted into the insertion hole ( 522 ) of the third part ( 3 ), the plug ( 531 ) is engaged with the side notches ( 411 ) of the second insertion ( 41 ). 
   
   
     5. The stroller as claimed in  claim 4 , wherein a radial groove ( 51 ) is defined in the third part ( 5 ) and a block ( 44 ) extends from the second part ( 4 ), the block ( 44 ) is engaged with the radial groove ( 51 ). 
   
   
     6. The stroller as claimed in  claim 1 , wherein the front wheel assembly (C) includes a base ( 7 ) fixed to the front end of the frame ( 1 ) of the stroller and a front wheel part ( 8 ) is connected to the base ( 7 ), the base ( 7 ) includes a connection base ( 71 ) which is fixed to the front end of the frame ( 1 ) and a top cover ( 72 ) which is mounted to the connection base ( 71 ), the connection base ( 71 ) includes a connection hole ( 711 ) and a stop plate ( 712 ) is located in front of the connection hole ( 711 ), a button member ( 73 ) is mounted to the stop plate ( 712 ) and includes two arms ( 731 ), a concavity ( 732 ) is defined in an underside of the button member ( 73 ) and a spring ( 733 ) is located in the concavity ( 732 ), the spring ( 733 ) is biased between the stop plate ( 712 ) and an inside of the concavity ( 732 ), the connection base ( 71 ) includes a plurality of recesses ( 713 ), the front wheel part ( 8 ) is mounted to the connection base ( 71 ) and includes an opening ( 721 ) through which the button member ( 73 ) extends, the front wheel part ( 8 ) is connected to front wheels and a connection bar ( 81 ) and positioning protrusions ( 82 ) extend from a top of the front wheel part ( 8 ), the connection bar ( 81 ) is inserted into the connection hole ( 711 ) of the connection base ( 71 ) and the positioning protrusions ( 82 ) are inserted into the recesses ( 713 ) of the connection base ( 71 ), the connection bar ( 81 ) includes a shrink section ( 811 ), the arms ( 731 ) of the button member ( 73 ) are removably engaged with the shrink section ( 811 ).